Infrastructure in South Dakota

South Dakota Infrastructure Overview

While the nation’s infrastructure earned a “D+” in the 2017 Infrastructure Report Card, South Dakota faces infrastructure challenges of its own. For example, driving on roads in need of repair in South Dakota costs each driver $564 per year, and 18.6% of bridges are rated structurally deficient. Drinking water needs in South Dakota are an estimated $6.12 billion, and wastewater needs total $166 million. 90 dams are considered to be high-hazard potential. The state’s schools have an estimated capital expenditure gap of $125 million. This deteriorating infrastructure impedes South Dakota’s ability to compete in an increasingly global marketplace. Success in a 21st century economy requires serious, sustained leadership on infrastructure investment at all levels of government. Delaying these investments only escalates the cost and risks of an aging infrastructure system, an option that the country, South Dakota, and families can no longer afford.

Key Facts about South Dakota's Infrastructure


58 public-use airports


1,081 (18.58%) of the 5,818 bridges are structurally deficient


90 high hazard dams

Dams with EAPS

95% of the state regulated dams have an Emergency Action Plan

Drinking Water

$6.12 billion in drinking water infrastructure needs over the next 20 years

Hazardous Waste

2 sites on the National Priorities List

Inland Waterways

80 miles of inland waterways, ranking it 36th


181 miles of levees

Public Parks

$26.25 million of unmet needs for its parks system


2,029 miles of freight railroads across the state, ranking 33rd nationally

Road Costs

$563 per motorist per year in costs from driving on roads in need of repair


82,584 miles of Public Roads, with 13% in poor condition


$125 million gap in estimated school capital expenditures


2,921,938 annual unlinked passenger trips via transit systems including bus, transit, and commuter trains


$166 million in wastewater infrastructure needs over the next 20 years

Key Solutions

Our nation’s infrastructure problems are solvable if we have leadership and commit to making good ideas a reality. Raising the grades on our infrastructure will require that we seek and adopt a wide range of solutions.

We can no longer afford to defer investment in our nation’s critical infrastructure systems.

Leadership & Planning

Smart investment will only be possible with leadership, planning, and a clear vision for our nation’s infrastructure.

Preparing for the Future

We have to utilize new approaches, materials, and technologies to ensure our infrastructure is more resilient.

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